Specifically for use in prime focus, deep-sky imaging or astrophotography with Schmidt-Cassegrain telescopes, the Radial Guider is compact and sleek in design. This accessory makes it possible to simultaneously photograph and guide through the optical tube assembly of your telescope. The Radial Guider also eliminates the problem of differential flexure, because you're both guiding and photographing through the telescope. The Radial Guider is compatible with Celestron's C5, C8, C9¼, C11 and C14 telescopes and comes with a unique prism angle adjustment screw. It must be used with a guiding eyepiece, camera T-Ring and drive corrector (dual axis preferred). Primarily for use with catadioptric telescopes, but also works on refractor telescopes having adequate back focus. This guider is a tremendous improvement over conventional off-axis guilders. Not only is the angle of the prism tunable, but it also maintains a fixed rigid camera orientation while still offering users the freedom to move the guiding eyepiece radially about 135°.

A T-Adapter allows you to attach your 35mm SLR camera to the prime focus of your telescope or spotting scope. This arrangement is used for terrestrial photography and short exposure lunar and planetary photography. It can also be used for long exposure deep-sky photography when using a separate guidescope.Both a T-Adapter and T-Ring are required to mount a camera to your instrument. - some instruments have built-in T-AdaptersSimilar to #93625 but in addition includes an integral 2x Barlow lens which can be used visually or photographically.

Barska Tripods are suitable for all spotting activities, field nature studies or photography. Mount your favorite large binocular, spotting scope or camera for stability. For binoculars, a binocular tripod adaptor is required ( sold separately). All tripod are built sturdily with extendable legs. Heavy duty for all purposes. Backed by Limited Lifetime Warranty.

The Original Lumicon Ultra-High Contrast narrow bandpass filter (24nm) isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) and H-Beta line (486nm) emitted by emission and planetary nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between the black background and the delicate photons of nebula light needed for near-photographic views of the Orion, Lagoon, Swan and planetary nebulae, among others. This makes the Lumicon UHC Filter the best all-around nebular filter on the market today. See for yourself -- it's truly amazing what the Lumicon UHC filter allows you to see! Lumicon tests every filter individually on a Perkin-Elmer Double Beam spectrophotometer, inscribing on the filter its % transmission for each of the primary lines.

Meade 1.25" Laser Collimator for Meade Lightbridge Dobsonian Telescopes & Newtonian Reflector Scopes 07401

Pair of cast-metal rings of 105mm inner diameter that attach to a mounting plate for Orion guidescopes of up to 80mm aperture. Each ring has three black nylon alignment screws, which will not scratch guidescope finish. Rings attach to mounting plate with two 1/4"-20 hex-head cap screws (included). A small wrench is also included.

The optical performance of most Newtonian telescopes can be optimized by collimating, or realigning, the telescope's optics, as needed. This procedure is easily accomplished with Celestron's Collimation Tool, a handy accessory that comes with detailed instructions.

For finding your way around the starry sky, there's no better tool than a star wheel, or "planisphere." Whether you're skywatching with just your eyes, with binoculars or with a telescope, it's essential for learning constellations, identifying bright stars, and planning observing sessions. Our Star Target features a detailed star map drafted by celestial cartographer Wil Tirion. It shows all constellations visible from mid-northern latitudes (30-degree to 50-degree) and the locations of 100 showpiece star clusters, nebulas, and galaxies for viewing with binoculars or a telescope. You just dial in the date and time, and-voila!-Star Target displays a current map of the night sky. On the back are simple instructions plus viewing tips and a calendar of annual meteor showers. A must for any stargazer, especially beginners. Coated cardboard, with clear plastic window. Disk diameter, 8-3/8".

The StarShoot "DSCI II" enables anyone with a telescope and a computer to shoot dazzling color pictures of star clusters, nebulas, galaxies, and planets. Embedded in the newly designed machined-aluminum housing is an 8mm diagonal (Type 1/2) Sony CCD chip featuring a 752 x 582 pixel array and 8.6 x 8.3 micron pixels. The larger chip sees a wider chunk of sky and is more sensitive than its predecessor, needing less exposure time to produce gorgeous results. The camera's thermoelectric cooling (TEC) system has been improved to further reduce electronic noise in images. The TEC gives the StarShoot a big advantage over the competition's cam, which is uncooled. With TEC, you get better, smoother images.

These adapters allow attachment of a 35mm SLR camera body to reflector and refractor telescopes for which T-adapters are not available. The adapter slides into the eyepiece holder as an eyepiece normally would. All models are composed of two detachable parts: a T-adapter for prime-focus photography, and an extension tube for eyepiece-projection photography. A setscrew in the extension tube holds the eyepiece in place. Each adapter is precision made of black-anodized aluminum. The 1.25" models are threaded for eyepiece filters. A T-ring, sold separately, is required to couple your 35mm camera body to the universal adapter.